select-tool.cpp revision 90278683f2c834b95a438896b01c7dd4ba590dad
/*
* Selection and transformation context
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* bulia byak <buliabyak@users.sf.net>
* Abhishek Sharma
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright (C) 2010 authors
* Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
* Copyright (C) 1999-2005 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <cstring>
#include <string>
#include <gdk/gdkkeysyms.h>
#include "macros.h"
#include "rubberband.h"
#include "document.h"
#include "document-undo.h"
#include "selection.h"
#include "sp-cursor.h"
#include "style.h"
#include "pixmaps/cursor-select-m.xpm"
#include "pixmaps/cursor-select-d.xpm"
#include "pixmaps/handles.xpm"
#include <glibmm/i18n.h>
#include "ui/tools/select-tool.h"
#include "selection-chemistry.h"
#ifdef WITH_DBUS
#include "extension/dbus/document-interface.h"
#endif
#include "desktop.h"
#include "desktop-handles.h"
#include "sp-root.h"
#include "preferences.h"
#include "ui/tools-switch.h"
#include "message-stack.h"
#include "selection-describer.h"
#include "seltrans.h"
#include "box3d.h"
#include "display/sp-canvas.h"
#include "display/sp-canvas-item.h"
#include "display/drawing-item.h"
#include "ui/tool-factory.h"
using Inkscape::DocumentUndo;
GdkPixbuf *handles[13];
namespace Inkscape {
namespace UI {
namespace Tools {
static GdkCursor *CursorSelectMouseover = NULL;
static GdkCursor *CursorSelectDragging = NULL;
static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect
static gint drag_escaped = 0; // if non-zero, drag was canceled by esc
namespace {
ToolBase* createSelectContext() {
return new SelectTool();
}
bool selectContextRegistered = ToolFactory::instance().registerObject("/tools/select", createSelectContext);
}
const std::string& SelectTool::getPrefsPath() {
return SelectTool::prefsPath;
}
const std::string SelectTool::prefsPath = "/tools/select";
//Creates rotated variations for handles
static void
sp_load_handles(int start, int count, char const **xpm) {
handles[start] = gdk_pixbuf_new_from_xpm_data((gchar const **)xpm);
for(int i = start + 1; i < start + count; i++) {
// We use either the original at *start or previous loop item to rotate
handles[i] = gdk_pixbuf_rotate_simple(handles[i-1], GDK_PIXBUF_ROTATE_CLOCKWISE);
}
}
SelectTool::SelectTool()
// Don't load a default cursor
: ToolBase(NULL, 0, 0)
, dragging(false)
, moved(false)
, button_press_shift(false)
, button_press_ctrl(false)
, button_press_alt(false)
, cycling_items(NULL)
, cycling_items_cmp(NULL)
, cycling_items_selected_before(NULL)
, cycling_cur_item(NULL)
, cycling_wrap(true)
, item(NULL)
, grabbed(NULL)
, _seltrans(NULL)
, _describer(NULL)
{
// cursors in select context
CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);
CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);
// selection handles
sp_load_handles(0, 2, handle_scale_xpm);
sp_load_handles(2, 2, handle_stretch_xpm);
sp_load_handles(4, 4, handle_rotate_xpm);
sp_load_handles(8, 4, handle_skew_xpm);
sp_load_handles(12, 1, handle_center_xpm);
}
//static gint xp = 0, yp = 0; // where drag started
//static gint tolerance = 0;
//static bool within_tolerance = false;
static bool is_cycling = false;
static bool moved_while_cycling = false;
SelectTool::~SelectTool() {
this->enableGrDrag(false);
if (this->grabbed) {
sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);
this->grabbed = NULL;
}
delete this->_seltrans;
this->_seltrans = NULL;
delete this->_describer;
this->_describer = NULL;
if (CursorSelectDragging) {
#if GTK_CHECK_VERSION(3,0,0)
g_object_unref(CursorSelectDragging);
#else
gdk_cursor_unref (CursorSelectDragging);
#endif
CursorSelectDragging = NULL;
}
if (CursorSelectMouseover) {
#if GTK_CHECK_VERSION(3,0,0)
g_object_unref(CursorSelectMouseover);
#else
gdk_cursor_unref (CursorSelectMouseover);
#endif
CursorSelectMouseover = NULL;
}
}
void SelectTool::setup() {
ToolBase::setup();
this->_describer = new Inkscape::SelectionDescriber(
desktop->selection,
desktop->messageStack(),
_("Click selection to toggle scale/rotation handles"),
_("No objects selected. Click, Shift+click, Alt+scroll mouse on top of objects, or drag around objects to select.")
);
this->_seltrans = new Inkscape::SelTrans(desktop);
sp_event_context_read(this, "show");
sp_event_context_read(this, "transform");
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
if (prefs->getBool("/tools/select/gradientdrag")) {
this->enableGrDrag();
}
}
void SelectTool::set(const Inkscape::Preferences::Entry& val) {
Glib::ustring path = val.getEntryName();
if (path == "show") {
if (val.getString() == "outline") {
this->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
} else {
this->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
}
}
}
bool SelectTool::sp_select_context_abort() {
Inkscape::SelTrans *seltrans = this->_seltrans;
if (this->dragging) {
if (this->moved) { // cancel dragging an object
seltrans->ungrab();
this->moved = FALSE;
this->dragging = FALSE;
sp_event_context_discard_delayed_snap_event(this);
drag_escaped = 1;
if (this->item) {
// only undo if the item is still valid
if (this->item->document) {
DocumentUndo::undo(sp_desktop_document(desktop));
}
sp_object_unref( this->item, NULL);
} else if (this->button_press_ctrl) {
// NOTE: This is a workaround to a bug.
// When the ctrl key is held, sc->item is not defined
// so in this case (only), we skip the object doc check
DocumentUndo::undo(sp_desktop_document(desktop));
}
this->item = NULL;
SP_EVENT_CONTEXT(this)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
return true;
}
} else {
if (Inkscape::Rubberband::get(desktop)->is_started()) {
Inkscape::Rubberband::get(desktop)->stop();
rb_escaped = 1;
SP_EVENT_CONTEXT(this)->defaultMessageContext()->clear();
SP_EVENT_CONTEXT(this)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
return true;
}
}
return false;
}
static bool
key_is_a_modifier (guint key) {
return (key == GDK_KEY_Alt_L ||
key == GDK_KEY_Alt_R ||
key == GDK_KEY_Control_L ||
key == GDK_KEY_Control_R ||
key == GDK_KEY_Shift_L ||
key == GDK_KEY_Shift_R ||
key == GDK_KEY_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)
key == GDK_KEY_Meta_R);
}
static void
sp_select_context_up_one_layer(SPDesktop *desktop)
{
/* Click in empty place, go up one level -- but don't leave a layer to root.
*
* (Rationale: we don't usually allow users to go to the root, since that
* detracts from the layer metaphor: objects at the root level can in front
* of or behind layers. Whereas it's fine to go to the root if editing
* a document that has no layers (e.g. a non-Inkscape document).)
*
* Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
* document), we might consider further restricting the below to disallow
* leaving a layer to go to a non-layer.
*/
SPObject *const current_layer = desktop->currentLayer();
if (current_layer) {
SPObject *const parent = current_layer->parent;
SPGroup *current_group = dynamic_cast<SPGroup *>(current_layer);
if ( parent
&& ( parent->parent
|| !( current_group
&& ( SPGroup::LAYER == current_group->layerMode() ) ) ) )
{
desktop->setCurrentLayer(parent);
if (current_group && (SPGroup::LAYER != current_group->layerMode())) {
sp_desktop_selection(desktop)->set(current_layer);
}
}
}
}
bool SelectTool::item_handler(SPItem* item, GdkEvent* event) {
gint ret = FALSE;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
// make sure we still have valid objects to move around
if (this->item && this->item->document == NULL) {
this->sp_select_context_abort();
}
switch (event->type) {
case GDK_BUTTON_PRESS:
if (event->button.button == 1 && !this->space_panning) {
/* Left mousebutton */
// save drag origin
xp = (gint) event->button.x;
yp = (gint) event->button.y;
within_tolerance = true;
// remember what modifiers were on before button press
this->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
this->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
this->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
// if shift or ctrl was pressed, do not move objects;
// pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
} else {
GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
this->dragging = TRUE;
this->moved = FALSE;
gdk_window_set_cursor(window, CursorSelectDragging);
desktop->canvas->forceFullRedrawAfterInterruptions(5);
// remember the clicked item in this->item:
if (this->item) {
sp_object_unref(this->item, NULL);
this->item = NULL;
}
this->item = sp_event_context_find_item (desktop,
Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
sp_object_ref(this->item, NULL);
rb_escaped = drag_escaped = 0;
if (this->grabbed) {
sp_canvas_item_ungrab(this->grabbed, event->button.time);
this->grabbed = NULL;
}
sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
NULL, event->button.time);
this->grabbed = SP_CANVAS_ITEM(desktop->drawing);
desktop->canvas->forceFullRedrawAfterInterruptions(5);
ret = TRUE;
}
} else if (event->button.button == 3) {
// right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
this->sp_select_context_abort();
}
break;
case GDK_ENTER_NOTIFY: {
if (!desktop->isWaitingCursor() && !this->dragging) {
GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
gdk_window_set_cursor(window, CursorSelectMouseover);
}
break;
}
case GDK_LEAVE_NOTIFY:
if (!desktop->isWaitingCursor() && !this->dragging) {
GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
gdk_window_set_cursor(window, this->cursor);
}
break;
case GDK_KEY_PRESS:
if (get_group0_keyval (&event->key) == GDK_KEY_space) {
if (this->dragging && this->grabbed) {
/* stamping mode: show content mode moving */
_seltrans->stamp();
ret = TRUE;
}
} else if (get_group0_keyval (&event->key) == GDK_KEY_Tab) {
if (this->dragging && this->grabbed) {
_seltrans->getNextClosestPoint(false);
ret = TRUE;
}
} else if (get_group0_keyval (&event->key) == GDK_KEY_ISO_Left_Tab) {
if (this->dragging && this->grabbed) {
_seltrans->getNextClosestPoint(true);
ret = TRUE;
}
}
break;
default:
break;
}
if (!ret) {
ret = ToolBase::item_handler(item, event);
}
return ret;
}
void SelectTool::sp_select_context_cycle_through_items(Inkscape::Selection *selection, GdkEventScroll *scroll_event, bool shift_pressed) {
if (!this->cycling_cur_item) {
return;
}
Inkscape::DrawingItem *arenaitem;
SPItem *item = dynamic_cast<SPItem *>(static_cast<SPObject *>(cycling_cur_item->data));
g_assert(item != NULL);
// Deactivate current item
if (!g_list_find(this->cycling_items_selected_before, item) && selection->includes(item)) {
selection->remove(item);
}
arenaitem = item->get_arenaitem(desktop->dkey);
arenaitem->setOpacity(0.3);
// Find next item and activate it
GList *next;
if (scroll_event->direction == GDK_SCROLL_UP) {
next = this->cycling_cur_item->next;
if (next == NULL && this->cycling_wrap)
next = this->cycling_items;
} else {
next = this->cycling_cur_item->prev;
if (next == NULL && this->cycling_wrap)
next = g_list_last(this->cycling_items);
}
if (next) {
this->cycling_cur_item = next;
item = dynamic_cast<SPItem *>(static_cast<SPObject *>(this->cycling_cur_item->data));
g_assert(item != NULL);
}
arenaitem = item->get_arenaitem(desktop->dkey);
arenaitem->setOpacity(1.0);
if (shift_pressed) {
selection->add(item);
} else {
selection->set(item);
}
}
void SelectTool::sp_select_context_reset_opacities() {
for (GList *l = this->cycling_items; l != NULL; l = g_list_next(l)) {
SPItem *item = dynamic_cast<SPItem *>(static_cast<SPObject *>(l->data));
if (item) {
Inkscape::DrawingItem *arenaitem = item->get_arenaitem(desktop->dkey);
arenaitem->setOpacity(SP_SCALE24_TO_FLOAT(item->style->opacity.value));
} else {
g_assert_not_reached();
}
}
g_list_free(this->cycling_items);
g_list_free(this->cycling_items_selected_before);
g_list_free(this->cycling_items_cmp);
this->cycling_items = NULL;
this->cycling_items_selected_before = NULL;
this->cycling_cur_item = NULL;
this->cycling_items_cmp = NULL;
}
bool SelectTool::root_handler(GdkEvent* event) {
SPItem *item = NULL;
SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
gint ret = FALSE;
Inkscape::Selection *selection = sp_desktop_selection(desktop);
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
// make sure we still have valid objects to move around
if (this->item && this->item->document == NULL) {
this->sp_select_context_abort();
}
switch (event->type) {
case GDK_2BUTTON_PRESS:
if (event->button.button == 1) {
if (!selection->isEmpty()) {
SPItem *clicked_item = static_cast<SPItem *>(selection->itemList()->data);
if (dynamic_cast<SPGroup *>(clicked_item) && !dynamic_cast<SPBox3D *>(clicked_item)) { // enter group if it's not a 3D box
desktop->setCurrentLayer(clicked_item);
sp_desktop_selection(desktop)->clear();
this->dragging = false;
sp_event_context_discard_delayed_snap_event(this);
desktop->canvas->endForcedFullRedraws();
} else { // switch tool
Geom::Point const button_pt(event->button.x, event->button.y);
Geom::Point const p(desktop->w2d(button_pt));
tools_switch_by_item (desktop, clicked_item, p);
}
} else {
sp_select_context_up_one_layer(desktop);
}
ret = TRUE;
}
break;
case GDK_BUTTON_PRESS:
if (event->button.button == 1 && !this->space_panning) {
// save drag origin
xp = (gint) event->button.x;
yp = (gint) event->button.y;
within_tolerance = true;
Geom::Point const button_pt(event->button.x, event->button.y);
Geom::Point const p(desktop->w2d(button_pt));
if (event->button.state & GDK_MOD1_MASK) {
Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
}
Inkscape::Rubberband::get(desktop)->start(desktop, p);
if (this->grabbed) {
sp_canvas_item_ungrab(this->grabbed, event->button.time);
this->grabbed = NULL;
}
sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
NULL, event->button.time);
this->grabbed = SP_CANVAS_ITEM(desktop->acetate);
// remember what modifiers were on before button press
this->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
this->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
this->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
this->moved = FALSE;
rb_escaped = drag_escaped = 0;
ret = TRUE;
} else if (event->button.button == 3) {
// right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
this->sp_select_context_abort();
}
break;
case GDK_MOTION_NOTIFY:
{
if (is_cycling) {
moved_while_cycling = true;
}
tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
if ((event->motion.state & GDK_BUTTON1_MASK) && !this->space_panning) {
Geom::Point const motion_pt(event->motion.x, event->motion.y);
Geom::Point const p(desktop->w2d(motion_pt));
if ( within_tolerance
&& ( abs( (gint) event->motion.x - xp ) < tolerance )
&& ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
break; // do not drag if we're within tolerance from origin
}
// Once the user has moved farther than tolerance from the original location
// (indicating they intend to move the object, not click), then always process the
// motion notify coordinates as given (no snapping back to origin)
within_tolerance = false;
if (this->button_press_ctrl || (this->button_press_alt && !this->button_press_shift && !selection->isEmpty())) {
// if it's not click and ctrl or alt was pressed (the latter with some selection
// but not with shift) we want to drag rather than rubberband
this->dragging = TRUE;
GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
gdk_window_set_cursor(window, CursorSelectDragging);
desktop->canvas->forceFullRedrawAfterInterruptions(5);
}
if (this->dragging) {
/* User has dragged fast, so we get events on root (lauris)*/
// not only that; we will end up here when ctrl-dragging as well
// and also when we started within tolerance, but trespassed tolerance outside of item
Inkscape::Rubberband::get(desktop)->stop();
this->defaultMessageContext()->clear();
item_at_point = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), FALSE);
if (!item_at_point) { // if no item at this point, try at the click point (bug 1012200)
item_at_point = desktop->getItemAtPoint(Geom::Point(xp, yp), FALSE);
}
if (item_at_point || this->moved || this->button_press_alt) {
// drag only if starting from an item, or if something is already grabbed, or if alt-dragging
if (!this->moved) {
item_in_group = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), TRUE);
group_at_point = desktop->getGroupAtPoint(Geom::Point(event->button.x, event->button.y));
{
SPGroup *selGroup = dynamic_cast<SPGroup *>(selection->single());
if (selGroup && (selGroup->layerMode() == SPGroup::LAYER)) {
group_at_point = selGroup;
}
}
// group-at-point is meant to be topmost item if it's a group,
// not topmost group of all items at point
if (group_at_point != item_in_group &&
!(group_at_point && item_at_point &&
group_at_point->isAncestorOf(item_at_point))) {
group_at_point = NULL;
}
// if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
if ((!item_in_group || !selection->includes(item_in_group)) &&
(!group_at_point || !selection->includes(group_at_point))
&& !this->button_press_alt) {
// select what is under cursor
if (!_seltrans->isEmpty()) {
_seltrans->resetState();
}
// when simply ctrl-dragging, we don't want to go into groups
if (item_at_point && !selection->includes(item_at_point)) {
selection->set(item_at_point);
}
} // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
_seltrans->grab(p, -1, -1, FALSE, TRUE);
this->moved = TRUE;
}
if (!_seltrans->isEmpty()) {
_seltrans->moveTo(p, event->button.state);
}
desktop->scroll_to_point(p);
gobble_motion_events(GDK_BUTTON1_MASK);
ret = TRUE;
} else {
this->dragging = FALSE;
sp_event_context_discard_delayed_snap_event(this);
desktop->canvas->endForcedFullRedraws();
}
} else {
if (Inkscape::Rubberband::get(desktop)->is_started()) {
Inkscape::Rubberband::get(desktop)->move(p);
if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
this->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
} else {
this->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
}
gobble_motion_events(GDK_BUTTON1_MASK);
}
}
}
break;
}
case GDK_BUTTON_RELEASE:
xp = yp = 0;
if ((event->button.button == 1) && (this->grabbed) && !this->space_panning) {
if (this->dragging) {
GdkWindow* window;
if (this->moved) {
// item has been moved
_seltrans->ungrab();
this->moved = FALSE;
#ifdef WITH_DBUS
dbus_send_ping(desktop, this->item);
#endif
} else if (this->item && !drag_escaped) {
// item has not been moved -> simply a click, do selecting
if (!selection->isEmpty()) {
if (event->button.state & GDK_SHIFT_MASK) {
// with shift, toggle selection
_seltrans->resetState();
selection->toggle(this->item);
} else {
SPObject* single = selection->single();
SPGroup *singleGroup = dynamic_cast<SPGroup *>(single);
// without shift, increase state (i.e. toggle scale/rotation handles)
if (selection->includes(this->item)) {
_seltrans->increaseState();
} else if (singleGroup && (singleGroup->layerMode() == SPGroup::LAYER) && single->isAncestorOf(this->item)) {
_seltrans->increaseState();
} else {
_seltrans->resetState();
selection->set(this->item);
}
}
} else { // simple or shift click, no previous selection
_seltrans->resetState();
selection->set(this->item);
}
}
this->dragging = FALSE;
window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
gdk_window_set_cursor(window, CursorSelectMouseover);
sp_event_context_discard_delayed_snap_event(this);
desktop->canvas->endForcedFullRedraws();
if (this->item) {
sp_object_unref( this->item, NULL);
}
this->item = NULL;
} else {
Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
if (r->is_started() && !within_tolerance) {
// this was a rubberband drag
GSList *items = NULL;
if (r->getMode() == RUBBERBAND_MODE_RECT) {
Geom::OptRect const b = r->getRectangle();
items = sp_desktop_document(desktop)->getItemsInBox(desktop->dkey, *b);
} else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
items = sp_desktop_document(desktop)->getItemsAtPoints(desktop->dkey, r->getPoints());
}
_seltrans->resetState();
r->stop();
this->defaultMessageContext()->clear();
if (event->button.state & GDK_SHIFT_MASK) {
// with shift, add to selection
selection->addList (items);
} else {
// without shift, simply select anew
selection->setList (items);
}
g_slist_free (items);
} else { // it was just a click, or a too small rubberband
r->stop();
if (this->button_press_shift && !rb_escaped && !drag_escaped) {
// this was a shift+click or alt+shift+click, select what was clicked upon
this->button_press_shift = false;
if (this->button_press_ctrl) {
// go into groups, honoring Alt
item = sp_event_context_find_item (desktop,
Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
this->button_press_ctrl = FALSE;
} else {
// don't go into groups, honoring Alt
item = sp_event_context_find_item (desktop,
Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
}
if (item) {
selection->toggle(item);
item = NULL;
}
} else if ((this->button_press_ctrl || this->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click
item = sp_event_context_find_item (desktop,
Geom::Point(event->button.x, event->button.y), this->button_press_alt, this->button_press_ctrl);
this->button_press_ctrl = FALSE;
this->button_press_alt = FALSE;
if (item) {
if (selection->includes(item)) {
_seltrans->increaseState();
} else {
_seltrans->resetState();
selection->set(item);
}
item = NULL;
}
} else { // click without shift, simply deselect, unless with Alt or something was cancelled
if (!selection->isEmpty()) {
if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK)) {
selection->clear();
}
rb_escaped = 0;
ret = TRUE;
}
}
}
ret = TRUE;
}
if (this->grabbed) {
sp_canvas_item_ungrab(this->grabbed, event->button.time);
this->grabbed = NULL;
}
desktop->updateNow();
}
if (event->button.button == 1) {
Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool!
}
this->button_press_shift = false;
this->button_press_ctrl = false;
this->button_press_alt = false;
break;
case GDK_SCROLL: {
GdkEventScroll *scroll_event = (GdkEventScroll*) event;
if (scroll_event->state & GDK_MOD1_MASK) { // alt modified pressed
if (moved_while_cycling) {
moved_while_cycling = false;
this->sp_select_context_reset_opacities();
}
is_cycling = true;
bool shift_pressed = scroll_event->state & GDK_SHIFT_MASK;
/* Rebuild list of items underneath the mouse pointer */
Geom::Point p = desktop->d2w(desktop->point());
SPItem *item = desktop->getItemAtPoint(p, true, NULL);
// Save pointer to current cycle-item so that we can find it again later, in the freshly built list
SPItem *tmp_cur_item = this->cycling_cur_item ? dynamic_cast<SPItem *>(static_cast<SPObject *>(this->cycling_cur_item->data)) : NULL;
g_list_free(this->cycling_items);
this->cycling_items = NULL;
this->cycling_cur_item = NULL;
while(item != NULL) {
this->cycling_items = g_list_append(this->cycling_items, item);
item = desktop->getItemAtPoint(p, true, item);
}
/* Compare current item list with item list during previous scroll ... */
GList *l1, *l2;
bool item_lists_differ = false;
// Note that we can do an 'or' comparison in the loop because it is safe to call g_list_next with a NULL pointer.
for (l1 = this->cycling_items, l2 = this->cycling_items_cmp; l1 != NULL || l2 != NULL; l1 = g_list_next(l1), l2 = g_list_next(l2)) {
if ((l1 !=NULL && l2 == NULL) || (l1 == NULL && l2 != NULL) || (l1->data != l2->data)) {
item_lists_differ = true;
break;
}
}
/* If list of items under mouse pointer hasn't changed ... */
if (!item_lists_differ) {
// ... find current item in the freshly built list and continue cycling ...
// TODO: This wouldn't be necessary if cycling_cur_item pointed to an element of cycling_items_cmp instead
this->cycling_cur_item = g_list_find(this->cycling_items, tmp_cur_item);
g_assert(this->cycling_cur_item != NULL || this->cycling_items == NULL);
} else {
// ... otherwise reset opacities for outdated items ...
Inkscape::DrawingItem *arenaitem;
for(GList *l = this->cycling_items_cmp; l != NULL; l = l->next) {
SPItem *item = dynamic_cast<SPItem *>(static_cast<SPObject *>(l->data));
if (item) {
arenaitem = item->get_arenaitem(desktop->dkey);
arenaitem->setOpacity(1.0);
//if (!shift_pressed && !g_list_find(this->cycling_items_selected_before, item) && selection->includes(item))
if (!g_list_find(this->cycling_items_selected_before, item) && selection->includes(item)) {
selection->remove(item);
}
}
}
// ... clear the lists ...
g_list_free(this->cycling_items_cmp);
g_list_free(this->cycling_items_selected_before);
this->cycling_items_cmp = NULL;
this->cycling_items_selected_before = NULL;
this->cycling_cur_item = NULL;
// ... and rebuild them with the new items.
this->cycling_items_cmp = g_list_copy(this->cycling_items);
for(GList *l = this->cycling_items; l != NULL; l = l->next) {
SPItem *item = dynamic_cast<SPItem *>(static_cast<SPObject *>(l->data));
if (item) {
arenaitem = item->get_arenaitem(desktop->dkey);
arenaitem->setOpacity(0.3);
if (selection->includes(item)) {
// already selected items are stored separately, too
this->cycling_items_selected_before = g_list_append(this->cycling_items_selected_before, item);
}
} else {
g_assert_not_reached();
}
}
// set the current item to the bottommost one so that the cycling step below re-starts at the top
this->cycling_cur_item = g_list_last(this->cycling_items);
}
this->cycling_wrap = prefs->getBool("/options/selection/cycleWrap", true);
// Cycle through the items underneath the mouse pointer, one-by-one
this->sp_select_context_cycle_through_items(selection, scroll_event, shift_pressed);
ret = TRUE;
GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel( GTK_WIDGET(desktop->canvas) ));
if (w)
{
gtk_window_present(w);
gtk_widget_grab_focus (GTK_WIDGET(desktop->canvas));
}
}
break;
}
case GDK_KEY_PRESS: // keybindings for select context
{
{
guint keyval = get_group0_keyval(&event->key);
bool alt = ( MOD__ALT(event)
|| (keyval == GDK_KEY_Alt_L)
|| (keyval == GDK_KEY_Alt_R)
|| (keyval == GDK_KEY_Meta_L)
|| (keyval == GDK_KEY_Meta_R));
if (!key_is_a_modifier (keyval)) {
this->defaultMessageContext()->clear();
} else if (this->grabbed || _seltrans->isGrabbed()) {
if (Inkscape::Rubberband::get(desktop)->is_started()) {
// if Alt then change cursor to moving cursor:
if (alt) {
Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
}
} else {
// do not change the statusbar text when mousekey is down to move or transform the object,
// because the statusbar text is already updated somewhere else.
break;
}
} else {
sp_event_show_modifier_tip (this->defaultMessageContext(), event,
_("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
_("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
_("<b>Alt</b>: click to select under; scroll mouse-wheel to cycle-select; drag to move selected or select by touch"));
// if Alt and nonempty selection, show moving cursor ("move selected"):
if (alt && !selection->isEmpty() && !desktop->isWaitingCursor()) {
GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
gdk_window_set_cursor(window, CursorSelectDragging);
}
//*/
break;
}
}
gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000, "px"); // in px
gdouble const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000, "px");
int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
switch (get_group0_keyval (&event->key)) {
case GDK_KEY_Left: // move selection left
case GDK_KEY_KP_Left:
if (!MOD__CTRL(event)) { // not ctrl
gint mul = 1 + gobble_key_events( get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT(event)) { // alt
if (MOD__SHIFT(event)) {
sp_selection_move_screen(sp_desktop_selection(desktop), mul*-10, 0); // shift
} else {
sp_selection_move_screen(sp_desktop_selection(desktop), mul*-1, 0); // no shift
}
} else { // no alt
if (MOD__SHIFT(event)) {
sp_selection_move(sp_desktop_selection(desktop), mul*-10*nudge, 0); // shift
} else {
sp_selection_move(sp_desktop_selection(desktop), mul*-nudge, 0); // no shift
}
}
ret = TRUE;
}
break;
case GDK_KEY_Up: // move selection up
case GDK_KEY_KP_Up:
if (!MOD__CTRL(event)) { // not ctrl
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT(event)) { // alt
if (MOD__SHIFT(event)) {
sp_selection_move_screen(sp_desktop_selection(desktop), 0, mul*10); // shift
} else {
sp_selection_move_screen(sp_desktop_selection(desktop), 0, mul*1); // no shift
}
} else { // no alt
if (MOD__SHIFT(event)) {
sp_selection_move(sp_desktop_selection(desktop), 0, mul*10*nudge); // shift
} else {
sp_selection_move(sp_desktop_selection(desktop), 0, mul*nudge); // no shift
}
}
ret = TRUE;
}
break;
case GDK_KEY_Right: // move selection right
case GDK_KEY_KP_Right:
if (!MOD__CTRL(event)) { // not ctrl
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT(event)) { // alt
if (MOD__SHIFT(event)) {
sp_selection_move_screen(sp_desktop_selection(desktop), mul*10, 0); // shift
} else {
sp_selection_move_screen(sp_desktop_selection(desktop), mul*1, 0); // no shift
}
} else { // no alt
if (MOD__SHIFT(event)) {
sp_selection_move(sp_desktop_selection(desktop), mul*10*nudge, 0); // shift
} else {
sp_selection_move(sp_desktop_selection(desktop), mul*nudge, 0); // no shift
}
}
ret = TRUE;
}
break;
case GDK_KEY_Down: // move selection down
case GDK_KEY_KP_Down:
if (!MOD__CTRL(event)) { // not ctrl
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT(event)) { // alt
if (MOD__SHIFT(event)) {
sp_selection_move_screen(sp_desktop_selection(desktop), 0, mul*-10); // shift
} else {
sp_selection_move_screen(sp_desktop_selection(desktop), 0, mul*-1); // no shift
}
} else { // no alt
if (MOD__SHIFT(event)) {
sp_selection_move(sp_desktop_selection(desktop), 0, mul*-10*nudge); // shift
} else {
sp_selection_move(sp_desktop_selection(desktop), 0, mul*-nudge); // no shift
}
}
ret = TRUE;
}
break;
case GDK_KEY_Escape:
if (!this->sp_select_context_abort()) {
selection->clear();
}
ret = TRUE;
break;
case GDK_KEY_a:
case GDK_KEY_A:
if (MOD__CTRL_ONLY(event)) {
sp_edit_select_all(desktop);
ret = TRUE;
}
break;
case GDK_KEY_space:
/* stamping mode: show outline mode moving */
/* FIXME: Is next condition ok? (lauris) */
if (this->dragging && this->grabbed) {
_seltrans->stamp();
ret = TRUE;
}
break;
case GDK_KEY_x:
case GDK_KEY_X:
if (MOD__ALT_ONLY(event)) {
desktop->setToolboxFocusTo ("altx");
ret = TRUE;
}
break;
case GDK_KEY_bracketleft:
if (MOD__ALT(event)) {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_rotate_screen(selection, mul*1);
} else if (MOD__CTRL(event)) {
sp_selection_rotate(selection, 90);
} else if (snaps) {
sp_selection_rotate(selection, 180.0/snaps);
}
ret = TRUE;
break;
case GDK_KEY_bracketright:
if (MOD__ALT(event)) {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_rotate_screen(selection, -1*mul);
} else if (MOD__CTRL(event)) {
sp_selection_rotate(selection, -90);
} else if (snaps) {
sp_selection_rotate(selection, -180.0/snaps);
}
ret = TRUE;
break;
case GDK_KEY_less:
case GDK_KEY_comma:
if (MOD__ALT(event)) {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_scale_screen(selection, -2*mul);
} else if (MOD__CTRL(event)) {
sp_selection_scale_times(selection, 0.5);
} else {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_scale(selection, -offset*mul);
}
ret = TRUE;
break;
case GDK_KEY_greater:
case GDK_KEY_period:
if (MOD__ALT(event)) {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_scale_screen(selection, 2*mul);
} else if (MOD__CTRL(event)) {
sp_selection_scale_times(selection, 2);
} else {
gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask
sp_selection_scale(selection, offset*mul);
}
ret = TRUE;
break;
case GDK_KEY_Return:
if (MOD__CTRL_ONLY(event)) {
if (selection->singleItem()) {
SPItem *clicked_item = selection->singleItem();
SPGroup *clickedGroup = dynamic_cast<SPGroup *>(clicked_item);
if ( (clickedGroup && (clickedGroup->layerMode() != SPGroup::LAYER)) || dynamic_cast<SPBox3D *>(clicked_item)) { // enter group or a 3D box
desktop->setCurrentLayer(clicked_item);
sp_desktop_selection(desktop)->clear();
} else {
this->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
}
}
ret = TRUE;
}
break;
case GDK_KEY_BackSpace:
if (MOD__CTRL_ONLY(event)) {
sp_select_context_up_one_layer(desktop);
ret = TRUE;
}
break;
case GDK_KEY_s:
case GDK_KEY_S:
if (MOD__SHIFT_ONLY(event)) {
if (!selection->isEmpty()) {
_seltrans->increaseState();
}
ret = TRUE;
}
break;
case GDK_KEY_g:
case GDK_KEY_G:
if (MOD__SHIFT_ONLY(event)) {
sp_selection_to_guides(desktop);
ret = true;
}
break;
default:
break;
}
break;
}
case GDK_KEY_RELEASE: {
guint keyval = get_group0_keyval(&event->key);
if (key_is_a_modifier (keyval)) {
this->defaultMessageContext()->clear();
}
bool alt = ( MOD__ALT(event)
|| (keyval == GDK_KEY_Alt_L)
|| (keyval == GDK_KEY_Alt_R)
|| (keyval == GDK_KEY_Meta_L)
|| (keyval == GDK_KEY_Meta_R));
if (Inkscape::Rubberband::get(desktop)->is_started()) {
// if Alt then change cursor to moving cursor:
if (alt) {
Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_RECT);
}
} else {
if (alt) {
// quit cycle-selection and reset opacities
if (is_cycling) {
this->sp_select_context_reset_opacities();
is_cycling = false;
}
}
}
// set cursor to default.
if (!desktop->isWaitingCursor()) {
// Do we need to reset the cursor here on key release ?
//GdkWindow* window = gtk_widget_get_window (GTK_WIDGET (sp_desktop_canvas(desktop)));
//gdk_window_set_cursor(window, event_context->cursor);
}
break;
}
default:
break;
}
if (!ret) {
ret = ToolBase::root_handler(event);
}
return ret;
}
}
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :